PSLE Mark was given a fixed amount of allowance each month. In April, he spent $330 and saved the rest. In May, he spent 40% less and his savings increased by 20%. How much was Mark's allowance for each month?
|
Spending (%) |
Savings (u) |
Before
|
100% $330 |
100 u
|
Change |
- 40% |
+ 20 u |
After |
60% |
120 u |
100% of spending = 330
1% of spending = 330 ÷ 100 = 3.3
40% of spending = 40% x 330 = 132
40% of spending = 20 u of savings
20 u of savings = 132
1 u of savings = 132 ÷ 20 = 6.6
100 u of savings = 100 x 6.6 = 660
Mark's allowance for each month
= 100% of spending + 100 u of savings
= 330 + 660
= $990
Answer(s): $990